Not really, though this is very funny: http://www.youtube.com/watch?v=w6AjgELgeTo
Ok, I've been watching the last two tournaments and the 'talent' around shouldn't worry the Rocket. Getting to a World final requires a kind draw and a bit of luck, even for the best; hence why Ali Carter has made two finals! The only guy who looks in any kind of form to trouble Ronnie is Robbo, but if Robbo got a tough draw and Ronnie an easy one, it could be a cakewalk for Ronnie. If everything went according to seeding, Ronnie would play Robbo and Judd would play Selby. However, things rarely go according to plan in snooker, this isn't tennis and not nearly as predicable. Ronnie hasn't defended a world crown successfully but I think he has as much chance and a bit more than most. So, not impossible and the lack of match practice is irrelevant as he should be able to turn match psychology on from memory. To be fair, he exists in a bubble and claims to be oblivious to what's happening; the best players exist in bubbles and really could be playing the match on Mars with active volcanoes going off, they are so zoned.
Not sure about him winning 4 more titles though; it's a big ask at Ronnie's age but I think Ronnie is the only player at 37 who could even contemplate something like this. Because of natural talent, on a mental and physical level, he's 10 years younger than the average professional, even the best pros like Davis and Hendry. He keeps himself in great shape. So, unlikely but not impossible for ROS.